ABAP Select data from SAP table CPEC_TERM_MIGR into internal table

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Below is a number of ABAP code snippets to demonstrate how to select data from SAP CPEC_TERM_MIGR table and store it within an internal table, including using the newer @DATA inline declaration methods. It also shows you various ways to process this data using ABAP work area, inline declaration or field symbols including executing all the relevant CONVERSION_EXIT routines specific to CPEC_TERM_MIGR. See here for more generic Select statement tips.

Sometimes data within SAP is stored within the database table in a different format to what it is displayed to the user. These input/output conversation FM routines are what translates the data between the two formats.

There is also a full declaration of the CPEC_TERM_MIGR table where each field has a char/string type for you to simply copy and paste. This allows you to use processing that is only available to these field types such as the CONCATENATE statement.

DATA: IT_CPEC_TERM_MIGR TYPE STANDARD TABLE OF CPEC_TERM_MIGR,
      WA_CPEC_TERM_MIGR TYPE CPEC_TERM_MIGR,
      GD_STR TYPE STRING.

DATA: lo_typedescr type REF TO cl_abap_typedescr.
DATA: lv_fieldname type fieldname.

FIELD-SYMBOLS: <FIELD> TYPE any.
FIELD-SYMBOLS: <CPEC_TERM_MIGR> TYPE CPEC_TERM_MIGR.

*Process all fields in table header/work area as string values
  PERFORM process_as_string_field_values CHANGING wa_CPEC_TERM_MIGR.

SELECT *
*restrict ABAP select to first 10 rows
 UP TO 10 ROWS      
  FROM CPEC_TERM_MIGR
  INTO TABLE IT_CPEC_TERM_MIGR.

*Select data and declare internal table using in-line method @DATA
*SELECT *
*  FROM CPEC_TERM_MIGR
*  INTO TABLE @DATA(IT_CPEC_TERM_MIGR2).
*--Further methods of using ABAP code to  select data from SAP database tables

*You can also declare the header/work area using the in-line DATA declaration method
READ TABLE IT_CPEC_TERM_MIGR INDEX 1 INTO DATA(WA_CPEC_TERM_MIGR2).


*Demonstrate how to loop at an internal table and update values using a FIELD-SYMBOL
LOOP AT IT_CPEC_TERM_MIGR ASSIGNING <CPEC_TERM_MIGR>.

*To update a field value using a field symbol simply change the value via the field symbol pointer
<CPEC_TERM_MIGR>-CLIENT = 1.
<CPEC_TERM_MIGR>-LOGSYS = 1.
<CPEC_TERM_MIGR>-RECORDNAME = 1.
<CPEC_TERM_MIGR>-TERMID = 1.
<CPEC_TERM_MIGR>-COND_TYPE = 1.

ENDLOOP.

LOOP AT IT_CPEC_TERM_MIGR INTO WA_CPEC_TERM_MIGR.
*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Write selected data to screen/report before conversion.
  WRITE:/ sy-vline,   WA_CPEC_TERM_MIGR-VALIDTO, sy-vline,
  WA_CPEC_TERM_MIGR-TERMTYPE, sy-vline,
  WA_CPEC_TERM_MIGR-TERMRULE, sy-vline,
  WA_CPEC_TERM_MIGR-QUOTSRC, sy-vline,
  WA_CPEC_TERM_MIGR-QUOTTYPE, sy-vline,
  WA_CPEC_TERM_MIGR-QUOTNAME, sy-vline.
ENDLOOP.
   
*Add any further fields from structure WA_CPEC_TERM_MIGR you want to display...

  WRITE:/ sy-uline.
* Aternatively use generic code to Write field values (and NAME) to screen report
  DO.
    ASSIGN COMPONENT sy-index OF STRUCTURE wa_CPEC_TERM_MIGR TO <field>.
    IF sy-subrc <> 0. EXIT. ENDIF.
    WRITE:/ 'Field Value', <field>, sy-vline.
    gd_str = <field> .
    lo_typedescr ?= CL_ABAP_DATADESCR=>DESCRIBE_BY_DATA( <field> ).
    lv_fieldname = lo_typedescr->GET_RELATIVE_NAME( ).
    WRITE:/ 'Field Name', lv_fieldname.
  ENDDO.

  
*Redo loop but convert all fields from internal to out value  
LOOP AT IT_CPEC_TERM_MIGR INTO WA_CPEC_TERM_MIGR.


*Write horizonal line to screen report.
  WRITE:/ sy-uline.

*Convert all fields to display/output versions using conversion routines
  PERFORM convert_all_field_values CHANGING wa_EKKO.
	 
ENDLOOP.

  
*&---------------------------------------------------------------------*
*& Form convert_all_field_values
*&---------------------------------------------------------------------*
FORM convert_all_field_values CHANGING p_EKKO LIKE wa_EKKO.
DATA: ld_input(1000) TYPE c, ld_output(1000) TYPE C.

*Conversion exit ALPHA, internal->external for field LOGSYS
CALL FUNCTION 'CONVERSION_EXIT_ALPHA_OUTPUT'
  EXPORTING
    input =                      WA_CPEC_TERM_MIGR-LOGSYS
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPEC_TERM_MIGR-LOGSYS.
WRITE:/ 'New Value:', ld_input.

*Conversion exit TSTPS, internal->external for field VALIDTO
CALL FUNCTION 'CONVERSION_EXIT_TSTPS_OUTPUT'
  EXPORTING
    input =                      WA_CPEC_TERM_MIGR-VALIDTO
  IMPORTING
    output =                     ld_input.
WRITE:/ 'Org Value:', WA_CPEC_TERM_MIGR-VALIDTO.
WRITE:/ 'New Value:', ld_input.
ENDFORM. 

*&---------------------------------------------------------------------*
*& Form process_as_string_field_values
*&---------------------------------------------------------------------*
FORM process_as_string_field_values CHANGING p_EKKO LIKE wa_EKKO.

TYPES: BEGIN OF T_CPEC_TERM_MIGR_STR, 
CLIENT TYPE STRING,
LOGSYS TYPE STRING,
RECORDNAME TYPE STRING,
TERMID TYPE STRING,
COND_TYPE TYPE STRING,
VALIDTO TYPE STRING,
TERMTYPE TYPE STRING,
TERMRULE TYPE STRING,
QUOTSRC TYPE STRING,
QUOTTYPE TYPE STRING,
QUOTNAME TYPE STRING,
QUOTGROUP TYPE STRING,
REFDOCCAT TYPE STRING,
REFDOC TYPE STRING,
REFITEM TYPE STRING,
REFGUID TYPE STRING,
REFCOND TYPE STRING,
FIXTERMRATE TYPE STRING,
FIXTERMCURR TYPE STRING,
FIXTERMPRUN TYPE STRING,
FIXTERMUOM TYPE STRING,
USERVAL1 TYPE STRING,
USERUOM1 TYPE STRING,END OF T_EKKO_STR.
DATA: WA_CPEC_TERM_MIGR_STR type T_EKKO_STR.

DATA: ld_text TYPE string.

LOOP AT IT_EKKO INTO WA_EKKO.
  MOVE-CORRESPONDING wa_EKKO TO WA_EKKO_STR.
  CONCATENATE: sy-vline
WA_CPEC_TERM_MIGR_STR-CLIENT sy-vline 
WA_CPEC_TERM_MIGR_STR-LOGSYS sy-vline 
WA_CPEC_TERM_MIGR_STR-RECORDNAME sy-vline 
WA_CPEC_TERM_MIGR_STR-TERMID sy-vline 
WA_CPEC_TERM_MIGR_STR-COND_TYPE sy-vline 
WA_CPEC_TERM_MIGR_STR-VALIDTO sy-vline 
WA_CPEC_TERM_MIGR_STR-TERMTYPE sy-vline 
WA_CPEC_TERM_MIGR_STR-TERMRULE sy-vline 
WA_CPEC_TERM_MIGR_STR-QUOTSRC sy-vline 
WA_CPEC_TERM_MIGR_STR-QUOTTYPE sy-vline 
WA_CPEC_TERM_MIGR_STR-QUOTNAME sy-vline 
WA_CPEC_TERM_MIGR_STR-QUOTGROUP sy-vline 
WA_CPEC_TERM_MIGR_STR-REFDOCCAT sy-vline 
WA_CPEC_TERM_MIGR_STR-REFDOC sy-vline 
WA_CPEC_TERM_MIGR_STR-REFITEM sy-vline 
WA_CPEC_TERM_MIGR_STR-REFGUID sy-vline 
WA_CPEC_TERM_MIGR_STR-REFCOND sy-vline 
WA_CPEC_TERM_MIGR_STR-FIXTERMRATE sy-vline 
WA_CPEC_TERM_MIGR_STR-FIXTERMCURR sy-vline 
WA_CPEC_TERM_MIGR_STR-FIXTERMPRUN sy-vline 
WA_CPEC_TERM_MIGR_STR-FIXTERMUOM sy-vline 
WA_CPEC_TERM_MIGR_STR-USERVAL1 sy-vline 
WA_CPEC_TERM_MIGR_STR-USERUOM1 sy-vline      INTO ld_text SEPARATED BY SPACE.

*Add any further fields from structure WA_EKKO_STR you want to CONCATENATE...
ENDLOOP.
ENDFORM.